/*
 * Copyright 2003,2004 The Apache Software Foundation
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package cn.taketoday.context.cglib.transform;

import cn.taketoday.context.asm.ClassVisitor;
import cn.taketoday.context.asm.MethodVisitor;

public class ClassTransformerChain extends AbstractClassTransformer {

  private ClassTransformer[] chain;

  public ClassTransformerChain(ClassTransformer[] chain) {
    this.chain = chain.clone();
  }

  public void setTarget(ClassVisitor v) {
    super.setTarget(chain[0]);
    ClassVisitor next = v;
    for (int i = chain.length - 1; i >= 0; i--) {
      chain[i].setTarget(next);
      next = chain[i];
    }
  }

  public MethodVisitor visitMethod(int access, String name, String desc, String signature, String[] exceptions) {
    return cv.visitMethod(access, name, desc, signature, exceptions);
  }

  public String toString() {
    StringBuilder sb = new StringBuilder();
    sb.append("ClassTransformerChain{");
    for (int i = 0; i < chain.length; i++) {
      if (i > 0) {
        sb.append(", ");
      }
      sb.append(chain[i].toString());
    }
    sb.append("}");
    return sb.toString();
  }
}
